Mail will not accept password or username and will not send mail. Receives e mail ok.
Have 3 emai accounts. All 3 receive mail but only one wil send mail. Other two accounts give me " username or password incorrect. Have verified both passwords and usernames and have reentered them. Did not help.. Deeted accounts and reenterd them. Did not help. Have hard reboot , no change.
Am at wits end.
iPad 2, iOS 9.0.2